Purple sea urchins are wiping out seaweed

Kelp – or seaweed – is crucial to all sorts of life in the ocean, and it’s disappearing fast in California. And so are the fish and sea creatures that depend on it. The culprit: a purple sea urchin.

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Credits

Guest:

  • Patrick Krug - marine biologist at California State University, Los Angeles

Host:

Madeleine Brand

Producers:

Sarah Sweeney, Michell Eloy, Amy Ta, Christian Bordal, Yael Even Or, Alexandra Sif Tryggvadottir, Adriana Cargill